Plot summary
Bernard shows up with his girlfriend ( Lisa Darr ), who turns out to have been Chris's lover when he was 22. Chris cannot remember her at all (he cannot recall a whole year of his life due to heavy drug use at the time). The half-brothers become estranged when she cannot tell their kisses apart in a blind test, as it raises questions about their uniqueness. Joel is worried that he is losing his big city smarts. Marilyn snoops through Joel's confidential medical files to check up on the men she dates; she drops any who have health issues.
Credits
Adapted from Wikipedia contributors, List of Northern Exposure episodes. HTML formatting and reference markers removed.